Range construction



March 26, 1929. M. G. KLEMME RANGE CONSTRUCTION Filed Jan 27, 1928 [N VENTO/Q. MAI/RICE G KLENME.I

BY A T'TO/QNE K Patented Mar. 26, 1929.

ree; stares mam leaner,

MAURICE G. KLEMME, OF BELLEVILLE, ILLINOIS.

, nnnenconstrnucrion.

Application filed January 27, 1928. Serial No. 249,822.

strains areset-up and produced in the metal adjacent-the bolts or other securing means. When the metal is subject to differences in temperature due to the stresses and strains set up around the bolts, the enamel cracks or becomes crazed. One of the objects of my'invention is to prevent this cracking and crazing. A further object is to make the thermal seal betweenthe oven door and the oven frame more'nearlyperfect when the. oven is closed than is'customarily done with the conven tional structure. A further object is to so devise the oven door and the frame inwhioh it fits so that the door and frame will be self centering.

With these and other objects in view,'myinbetween them sustains them in the relative position shown in'Fig. 2 after having been so vention has relation to certain novel features of construction and arrangement of parts as will be hereinafter more fully described, pointed out in the claim and illustrated in the drawing in which, v v v Fig. 1 is a schematic front elevation of an oven frame with the ovendoor, the latter be ing in its closed position.

Fig. 2 is a fragmental sectional elevation on the line 22 of. Fig. 1, and

Fig. 8 is a fragmental sectional plan View on the line 3-3of Fig. 1.

Numeral 4e designates the oven generally to which is hingedly secured the oven door 5 by means of the conventional hinges 6. Numeral 7 designates an angle iron door frame. into whichthe oven door 5 is seated when the door is in its closed position. The door 5 does not extendentirely frornlead line of 5 in 3 to the inner wall 7 inthe' same figure. The angle iron door frame is formed of. theshank 8 and the plate 9 formed at right angles and in tegral with theshankv8. Numeral 10' desig-v nates a small projection outwardlyfrOm the 1 plate 9 paralle1 to the plane of the shank 8.

Fig. 3 is a modification of Fig. 2, the door 51 extends entirely from 5 to 10 in Fig. 2. Numeral 11 designates the sheet metal top of the oven and numeral 12 the interior top wall of the/oven. Numeral 15 designates one of the lateral walls of the oven and innneralle the interior lateral wall ofthe oven. My'invention concerns itselfprincipally with the joint-1 ure of the sheet metal top llto the angle iron door frame 7 and the sheet metal lateral wall 13 with the angle iron door frame 7. Thethe'interior top wall of the oven 12, as well as to encompass the angle iron door frame 7 is sheet metal that is to form the top 11 and f stamped into the shape shown in Figs. 2 and.

3 so that the sheet metal'is bent over and around the shank 8, and the plate 9. When thls single piece of sheet metal has been thus stamped and the angle iron door frame 7 is in its operative position, it only becomes nec essary to press or force the. stamped sheet metal from thefrontrearwardly in a horizontal plane to bring it into the position indicated in Fig. 2. The fit between the stamped sheet metal and the angleiron door frame is such that the frictional engagement initially placed in such a' position. Before stamped sheet metal portion' against which the door is supported.

In order to sustain theangle iron door frame 7 in itsproper position, the following I instrumentalities are employed. Numeral 16 designates a rod threaded at both ends. A .hole is tapped and threaded in the plate 9. A

similar hole istapped in the rear portion of the frame of the oven so thatthe rod 16 may be secured in these holes by the threadedengagement between the ends of the rod and the holes. Lock nuts17 are placed in threaded engagement on the ends of the rod 16 interiorly relative the plate 9 and the rear wall of the oven. By a tightening of thelock nut17 the relative position of the. angle iron door frame 7 and the rear wall'of the oven is established. The same construction that has been described herein for the ointurebetween the top of the oven and the front frame element is employed for the jointure between the lateral Walls of the oven and the. front frame element.

What I claim. and meanto secure by Letters Patent is:

In combination With an oven frame, a sheet metal Wall harving'its edges bent around the edges of said frame, a door, the sides of the door, conformlng in shape With the edges of 10.

the sheet metal Wall with Which the doonis in 

